毕业论文 字数电子钟的设计.doc

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1、陈文河0858210103南京理工大学2011–03–06目录摘要及关键字······························································2ABSTRACT··································································2一.设计要求·······························································2二.总体方案设计············

2、···············································3三.各子模块设计原理·······················································31.计秒模块······························································32.计分模块······························································53.计时模块·······

3、·······················································64.校准模块······························································75.显示模块······························································96.报时19陈文河0858210103南京理工大学2011–03–06模块··································

4、····························127.分频模块······························································138.去抖动模块····························································15四.硬件下载与测试························································161.硬件下载·······················

5、·······································162.测试··································································173.功能扩展······························································17五.结论···································································17参考文献·····

6、·····························································1819陈文河0858210103南京理工大学2011–03–06数字电子钟的设计摘要及关键字：数字电子钟是生活中最常用的电子设备之一，其主要功能是能够显示时、分、秒实时信息，并能够方便地进行时、分、秒的初始值设置，以便时间校准。实现数字电子钟有很多方法，本课程是采用VHDL硬件语言的强大描述能力和EDA工具的结合在电子设计领域来设计一个具有多功能的数字电子钟。关键字：数字电子钟VHDL硬件语言EDA工具

7、ABSTRACT:Digitalelectricclockinlifearethemostcommonlyusedoneoftheelectronicequipment.Itsmainfunctionistodisplay,minutesandsecondsreal-timeinformationandcanbeeasilywhencarriedout,minutesandseconds,sothattheinitialvalueissettimecalibration.Therearemanymethodsofdesign

8、digitalelectricclock.ThiscourseisapowerfulbyVHDLhardwarelanguagedescribeabilityandEDAtoolsinelectronicdesignfieldwithversatiletodesignadigitalele